docs(updating-datahub): update docs for v0.12.1 (#9441) #1

Job	Run time
setup	8s
Build and Push DataHub Upgrade Docker Image	6m 34s
Build and Push DataHub Frontend Docker Image	12m 57s
Build and Push DataHub GMS Docker Image	6m 20s
Build and Push DataHub MAE Consumer Docker Image	6m 21s
Build and Push DataHub MCE Consumer Docker Image	5m 54s
Build and Push DataHub Ingestion (Base) Docker Image	11m 58s
Build and Push DataHub Elasticsearch Setup Docker Image	17s
Build and Push DataHub Kafka Setup Docker Image	2m 3s
Build and Push DataHub MySQL Setup Docker Image	33s
[Monitoring] Scan DataHub Upgrade images for vulnerabilities	18s
[Monitoring] Scan GMS images for vulnerabilities	15s
[Monitoring] Scan MAE consumer images for vulnerabilities	19s
[Monitoring] Scan MCE consumer images for vulnerabilities	14s
[Monitoring] Scan Frontend images for vulnerabilities	19s
Build and Push DataHub Ingestion (Base-Slim) Docker Image	10s
Build and Push DataHub Ingestion (Base-Full) Docker Image	19s
Build and Push DataHub Ingestion Docker Images	0s
[Monitoring] Scan Datahub Ingestion Slim images for vulnerabilities	0s
Run Smoke Tests	0s
Deploy to Datahub HEAD	0s
Build and Push DataHub Ingestion (Full) Docker Images	0s
[Monitoring] Scan Datahub Ingestion images for vulnerabilities	0s
	54m 59s

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